1950 United States Federal Census

Validator (claude-sonnet-5-5, 2026-10-28): consistent, confidence 2/4, tier record.
The image shows Frances T. Bouska, wife of George J. Bouska, aged 66 and born in Czechoslovakia, on sheet 22 of ED 66-911 in Los Angeles. This fits a Bohemian-born woman born about 1883-84. The census cannot confirm the exact date, the village, or the maiden name Tauber, so it is consistent with the claim but does not prove it.
Matches: Sheet 22, ED 66-911, Los Angeles, matches the citation detail; Household of George J. Bouska (head) and Frances T. (wife), both born in Czechoslovakia; Frances T. is aged 66, which implies a birth around 1883-84 and fits the claimed 1883; Czechoslovakia in 1950 is consistent with a birth in Bohemia; The middle initial 'T' could stand for Tauber, though the record does not say so
Limits: A census gives an age, not a birth date, so 6 March 1883 is not stated; The record gives no birthplace more specific than Czechoslovakia, so Mostiště and Rokycany are not confirmed; She appears under her married name Bouska, and the 'T' initial is not expanded, so the link to Františka Tauber depends on other evidence; A birth on 6 March 1883 would make her 67 on 13 April 1950. The recorded 66 is one year off, which is within normal census error but not an exact fit; George's age looks overwritten (64/74), which shows the entry has some errors